A wind turbine blade and a pitch controlled wind turbine

Details A wind turbine blade and a pitch controlled wind turbine A wind turbine blade and a pitch controlled wind turbine

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 1/06 (2006.01) B64C 23/06 (2006.01) F03D 11/00 (2006.01)

Patent

CA 2654772

The invention relates to a wind turbine blade (5) comprising one or more turbulence generating strips (10), where the strips (10) are placed on a surface of the blade (5). The blade (5) is characterized in that at least one joint area (22) of the turbulence generating strips (10) and the surface of the blade (5) are completely or partially covered by sealing means (23). The invention further relates to a pitch controlled wind turbine (1) comprising at least two pitch controlled wind turbine blades (5) and pitch controlling means for pitching the blades (5). The pitch controlled wind turbine (1) is characterized in that the blades (5) comprises one or more turbulence generating strips (10), wherein at least one joint area (22) of the turbulence generating strips (10) and a surface of the blades (5) are completely or partially covered by sealing means (23).

L'invention concerne une pale (5) d'éolienne comportant une ou plusieurs bandes (10) génératrices de turbulence, les bandes (10) étant placées sur une surface de la pale (5). La pale (5) est caractérisée en ce qu'au moins une zone (22) de jonction des bandes (10) génératrices de turbulence et de la surface de la pale (5) est entièrement ou partiellement recouverte par un moyen (23) d'étanchéité. L'invention concerne en outre une éolienne (1) à régulation de pas comportant au moins deux pales (5) d'éolienne à régulation de pas et un moyen de régulation de pas destiné à orienter les pales (5). L'éolienne (1) à régulation de pas est caractérisée en ce que les pales (5) comportent une ou plusieurs bandes (10) génératrices de turbulence, au moins une zone (22) de jonction des bandes (10) génératrices de turbulence et d'une surface des pales (5) étant entièrement ou partiellement recouverte par un moyen (23) d'étanchéité.

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